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Arabidopsis thaliana

ABSTRACT: Expression analysis of root developmental zones after iron deficiency (-Fe) treatment

OTHER RELATED OMICS DATASETS IN: E-GEOD-7641E-GEOD-10496

PROVIDER: PRJNA108929 | ENA |

REPOSITORIES: ENA

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Transcription profiling of Arabidopsis roots after Iron deficiency

Project description:This SuperSeries is composed of the following subset Series:; GSE10496: Expression analysis of the effect of protoplasting and FACS sorting in roots exposed to iron deficiency (-Fe); GSE10497: Expression analysis of root developmental zones after iron deficiency (-Fe) treatment; GSE10501: Expression analysis of root cell-types after iron deficiency (-Fe) treatment; GSE10502: Time course expression analysis of the iron deficiency (-Fe) response in Arabidopsis roots Experiment Overall Design: Refer to individual Series

2008-06-11 | E-GEOD-10576 | biostudies-arrayexpress

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CAN OF SPINACH, a novel long non-coding RNA, affects iron deficiency responses in Arabidopsis thaliana (small RNA-Seq)

Project description:We performed small RNA-seq (sRNA-seq) study of Arabidopsis shoots under iron-sufficient (+Fe), iron deficient (-Fe) and iron resupply (Fe resupply) conditions to investigate and identify sRNAs whose expression is regulated by iron deficiency.

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Transcript analysis under phosphate and iron deprivation in 7 day old Arabidopsis thaliana seedlings

Project description:Arabidopsis wild-type plants (Col-0 accession) were grown on control (+Fe+P) for 7 days on 0.1X MS then transferred to three different medium: control (+Fe+P), iron deficiency (-Fe+P), and iron and phosphate deficiency conditions (-Fe-P). Shoots were collected 39 h, 52 h and 76 h after the transfer. For RNA-seq experiments, three biological replicates were used for each time point (39h, 52h and 76h) and each condition (+Fe+P, -Fe+P and -Fe-P) for a total of 27 samples.

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Iron-deficiency-induced changes in wild type, ubc13A and cucumber CsUBC13 overexpressed Arabidopsis thaliana roots

Project description:CsUBC13 was identified via proteomics from iron starvation treated Cucumber root. ubc13A is an ABRC seed stock (CS51269). CS851269 was purchased from ABRC and confirmed as homozygous Atubc13A knock-out T-DNA mutant. We generated transgenic arabidopsis with ectopic expression of CsUBC13 gene under control of the cauliflower 35S promotor. Both genotypes and Col-0 were used to investigate the transcriptional response to Iron (Fe) deficiency. Wild type Col-0, ubc13A and transgenic overexpressor OE were grown under normal and iron-deficiency conditions. Roots were collected with 3 biological replicates.

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Salicylic acid accumulation is required for Fe-deficiency responses in Arabidopsis

Project description:Several phytohormones and other small molecules have been demonstrated to be involved in iron (Fe) homeostasis. However, how salicylic acid (SA), an essential hormone in plant immunity and defense responses, participates in Fe-deficiency responses in plants is largely unknown. Here, we took advantage of a SA biosynthesis defect mutant phytoalexin deficient 4 (pad4: T-DNA Salk_089936) to explore the possible effects of endogenous SA on the morphological and physiological responses to Fe deprivation. Under a Fe-deficiency treatment, Col-0 showed more severe leaf chlorosis and root growth inhibition compared with the pad4 mutant. The soluble Fe concentrations were significant higher in pad4 than Col-0 under the Fe-deficiency treatment, suggesting that a mutation in the PAD4 gene may alleviate the Fe-deficiency-induced symptoms by regulating the soluble Fe concentrations. Furthermore, a SA signaling maker line (PR1promoter: GUS) was used to investigate how Fe deficiency affects endogenous SA biosynthesis and metabolism. The data showed that Fe deficiency significantly induced SA accumulation in Col-0, and the loss function of PAD4 blocked this process. The requirement of endogenous SA accumulation for Fe-deficiency responses was confirmed using a series of SA biosynthetic mutants and transgenic lines.

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Rosette iron deficiency transcript profiling in Arabidopsis thaliana ecotypes Kas-1 and Tsu-1

Project description:Iron (Fe) is an essential plant micronutrient, and its deficiency limits plant growth and development on alkaline soils. Under Fe deficiency, plant responses include upregulation of genes involved in Fe uptake from the soil. However, little is known about shoot responses to Fe deficiency. Using microarrays to probe gene expression in Kas-1 and Tsu-1 ecotypes of Arabidopsis thaliana revealed conserved rosette gene expression responses to Fe deficiency. Fe regulated genes included known metal homeostasis-related genes, and a number of genes of unknown function.

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